/**
 ******************************************************************************
 * @file    usbd_cdc.h
 * @author  MCD Application Team
 * @version V2.4.2
 * @date    11-December-2015
 * @brief   header file for the usbd_cdc.c file.
 ******************************************************************************
 * @attention
 *
 * <h2><center>&copy; COPYRIGHT 2015 STMicroelectronics</center></h2>
 *
 * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
 * You may not use this file except in compliance with the License.
 * You may obtain a copy of the License at:
 *
 *        http://www.st.com/software_license_agreement_liberty_v2
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 ******************************************************************************
 */

/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef __USB_CDC_H
#define __USB_CDC_H

#ifdef __cplusplus
extern "C" {
#endif

/* Includes ------------------------------------------------------------------*/
#include "usbd_ioreq.h"

/** @addtogroup STM32_USB_DEVICE_LIBRARY
 * @{
 */

/** @defgroup usbd_cdc
 * @brief This file is the Header file for usbd_cdc.c
 * @{
 */

/** @defgroup usbd_cdc_Exported_Defines
 * @{
 */
#define CDC_IN_EP 0x81  /* EP1 for data IN */
#define CDC_OUT_EP 0x01 /* EP1 for data OUT */
#define CDC_CMD_EP 0x82 /* EP2 for CDC commands */

/* CDC Endpoints parameters: you can fine tune these values depending on the
 * needed baudrates and performance. */
#define CDC_DATA_HS_MAX_PACKET_SIZE 512 /* Endpoint IN & OUT Packet size */
#define CDC_DATA_FS_MAX_PACKET_SIZE 64  /* Endpoint IN & OUT Packet size */
#define CDC_CMD_PACKET_SIZE 8           /* Control Endpoint Packet size */

#define USB_CDC_CONFIG_DESC_SIZ 67
#define CDC_DATA_HS_IN_PACKET_SIZE CDC_DATA_HS_MAX_PACKET_SIZE
#define CDC_DATA_HS_OUT_PACKET_SIZE CDC_DATA_HS_MAX_PACKET_SIZE

#define CDC_DATA_FS_IN_PACKET_SIZE CDC_DATA_FS_MAX_PACKET_SIZE
#define CDC_DATA_FS_OUT_PACKET_SIZE CDC_DATA_FS_MAX_PACKET_SIZE

/*---------------------------------------------------------------------*/
/*  CDC definitions                                                    */
/*---------------------------------------------------------------------*/
#define CDC_SEND_ENCAPSULATED_COMMAND 0x00
#define CDC_GET_ENCAPSULATED_RESPONSE 0x01
#define CDC_SET_COMM_FEATURE 0x02
#define CDC_GET_COMM_FEATURE 0x03
#define CDC_CLEAR_COMM_FEATURE 0x04
#define CDC_SET_LINE_CODING 0x20
#define CDC_GET_LINE_CODING 0x21
#define CDC_SET_CONTROL_LINE_STATE 0x22
#define CDC_SEND_BREAK 0x23

/**
 * @}
 */

/** @defgroup USBD_CORE_Exported_TypesDefinitions
 * @{
 */

/**
 * @}
 */
typedef struct {
  uint32_t bitrate;
  uint8_t format;
  uint8_t paritytype;
  uint8_t datatype;
} USBD_CDC_LineCodingTypeDef;

typedef struct _USBD_CDC_Itf {
  int8_t (*Init)(void);
  int8_t (*DeInit)(void);
  int8_t (*Control)(uint8_t, uint8_t *, uint16_t);
  int8_t (*Receive)(uint8_t *, uint32_t *);

} USBD_CDC_ItfTypeDef;

typedef struct {
  uint32_t data[CDC_DATA_HS_MAX_PACKET_SIZE / 4]; /* Force 32bits alignment */
  uint8_t CmdOpCode;
  uint8_t CmdLength;
  uint8_t *RxBuffer;
  uint8_t *TxBuffer;
  uint32_t RxLength;
  uint32_t TxLength;

  __IO uint32_t TxState;
  __IO uint32_t RxState;
} USBD_CDC_HandleTypeDef;

/** @defgroup USBD_CORE_Exported_Macros
 * @{
 */

/**
 * @}
 */

/** @defgroup USBD_CORE_Exported_Variables
 * @{
 */

extern USBD_ClassTypeDef USBD_CDC;
#define USBD_CDC_CLASS &USBD_CDC
/**
 * @}
 */

/** @defgroup USB_CORE_Exported_Functions
 * @{
 */
uint8_t USBD_CDC_RegisterInterface(USBD_HandleTypeDef *pdev,
                                   USBD_CDC_ItfTypeDef *fops);

uint8_t USBD_CDC_SetTxBuffer(USBD_HandleTypeDef *pdev, uint8_t *pbuff,
                             uint16_t length);

uint8_t USBD_CDC_SetRxBuffer(USBD_HandleTypeDef *pdev, uint8_t *pbuff);

uint8_t USBD_CDC_ReceivePacket(USBD_HandleTypeDef *pdev);

uint8_t USBD_CDC_TransmitPacket(USBD_HandleTypeDef *pdev);
/**
 * @}
 */

#ifdef __cplusplus
}
#endif

#endif /* __USB_CDC_H */
/**
 * @}
 */

/**
 * @}
 */

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
